none. the homestuck kids are all stereotypes. this sort of thing makes me irrationally angry like "which my little pony are you" quizzes. this girl who identified herself with fluttershy ruined the character for me. that bitch.
Alrighty, well I wish I could sort of help you through this "irrational anger" as you put it. If these things make you uncomfortable then feel free to avoid them in the future to save yourself the undo stress, deary. I was merely doing this for fun, anyhow.
A lot of people identify with characters because they feel as though they share a lot of common traits or quirks, and in a way their personality is sort of being represented (unintentionally, usually) by a character that they may end up liking quite a bit. It's just something that makes people feel happy and establishes a personal connection between them and a fictional work.
I hope that you can end up liking the character again for themself rather than letting the fanbase ruin things for you. Fluttershy happens to be my favorite of the mane six, and admittedly I do share some traits with her which may contribute to my reasons for liking her so much.